Page 36 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six

Biology for Secondary Schools

the results to the scientific community Caution
by publishing their final report in a Avoid collecting hairy or
journal or at seminars, conferences, thorny plants and those known
workshops, and meetings. to be poisonous.
FOR ONLINE READING ONLY
2. Examine each leaf closely as
Note: If your results do not support the follows:
hypothesis: (a) Look at the size, shape, and
(a) Do not stop to repeat the colour.

experiment. (b) Feel the texture of the leaf.
(b) Give possible reasons for the 3. Using a hand lens, observe the
difference between your hypothesis patterns on each leaf.
and the experimental results. 4. Note down what you have
(c) Give ideas for further investigations observed.
to find answers to the problem. Questions

Simple biological experiments 1. How are the leaves similar?
Biological experiments can be done 2. How are the leaves different?
to study different features of living

things. As you learn Biology, you Activity 2.7: Collecting and observing
will often carry out experiments to the characteristics of animals
test hypotheses or to learn more about
organisms. Materials: Preserved specimens of
insects and other small animals, sweep

Activity 2.6: Observing different types nets, a pen or pencil, notebook, bottles,
of plant leaves and hand lenses
Procedure
Materials: Different types of plant 1. Use sweep nets to catch insects,
leaves, hand lens, notebook, and a pen such as grasshoppers, termites,
or pencil cockroaches, and butterflies
around school compound, as
Procedure shown in Figure 2.29. Sweep

1. Collect different types of leaves nets can also be used to catch
from plants in the school or small animals, such as millipedes
home environment. and frogs.

30 Student’s Book Form One Student’s Book Form One

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Biology FORM 1 new.indd 30
Biology FORM 1 new.indd 30 15/10/2024 09:24:21